The fragile-to-strong dynamic crossover transition in confined water: Nuclear magnetic resonance results

F. Mallamace, M. Broccio, C. Corsaro, A. Faraone, U. Wanderlingh, L. Liu, C. Y. Mou, S. H. Chen

Research output: Contribution to journalArticlepeer-review

186 Citations (Scopus)

Abstract

By means of a nuclear magnetic resonance experiment, we give evidence of the existence of a fragile-to-strong dynamic crossover transition (FST) in confined water at a temperature TL =223±2 K. We have studied the dynamics of water contained in 1D cylindrical nanoporous matrices (MCM-41-S) in the temperature range 190-280 K, where experiments on bulk water were so far hampered by crystallization. The FST is clearly inferred from the T dependence of the inverse of the self-diffusion coefficient of water (1D) as a crossover point from a non-Arrhenius to an Arrhenius behavior. The combination of the measured self-diffusion coefficient D and the average translational relaxation time 〈 τT 〉, as measured by neutron scattering, shows the predicted breakdown of Stokes-Einstein relation in deeply supercooled water.

Original languageEnglish
Article number161102
JournalJournal of Chemical Physics
Volume124
Issue number16
DOIs
Publication statusPublished - 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Fingerprint

Dive into the research topics of 'The fragile-to-strong dynamic crossover transition in confined water: Nuclear magnetic resonance results'. Together they form a unique fingerprint.

Cite this